Tuna Salad Recipe Without Mayo: Greek Yogurt Twist With Fresh Herbs

This tuna salad swaps mayo for Greek yogurt, delivering a lighter, protein-packed version with the same creamy texture.

Fresh herbs and a squeeze of lemon brighten every bite, making this a no-fuss dish that’s ready in minutes.

Ingredients for Tuna Salad Recipe Without Mayo

A lighter twist on classic tuna salad with Greek yogurt and fresh herbs for bright flavor.

The tuna matters here. Wild-caught in water (not oil) keeps the flavor clean—Safe Catch or Ortiz are top-tier. Greek yogurt needs to be full-fat for that creamy mouthfeel; Fage 5% is my go-to. Celery and red onion add the crunch, but soak the onion first to mellow its bite (don’t skip this). Fresh herbs are non-negotiable—dill and parsley bring the brightness mentioned in the intro.

No Greek yogurt? Sour cream at a 1:1 ratio works, but it’s heavier. Swap capers for chopped cornichons or green olives if that’s what’s in the pantry. Dijon mustard can be regular yellow in a pinch, but you’ll lose that sharp depth. The lemon juice is key—don’t use bottled. If you’re out of fresh, a teaspoon of white wine vinegar adds needed acidity.

This keeps 3-4 days in the fridge—longer if you press plastic wrap directly on the surface. Don’t freeze; the yogurt separates. Best served chilled on whole-grain bread or over greens (it’ll weep a little, which is fine).

Step-by-Step Instructions for Tuna Salad Without Mayo

This method ensures a creamy, herb-forward dish with bright flavors and perfect texture.

Step 1: Prepare the Vegetables and Herbs

Finely dice the 3 whole celery stalks into uniform ¼-inch pieces for consistent crunch. For the 0.5 whole red onion, create a small dice and soak it in cold water for 5 minutes to mellow the sharpness. This step is non-negotiable—raw onion can overpower the salad.

Chop the 0.25 cup fresh dill and 0.25 cup fresh parsley finely, discarding any thick stems. Fresh herbs are the soul of this recipe, so ensure they’re vibrant and aromatic. Drain and chop the 2 tbsp capers to prevent overly salty pockets in the final dish.

Step 2: Drain and Flake the Tuna

Open the 3 cans canned tuna in water and drain them thoroughly in a fine-mesh sieve. Press gently with a spatula to remove excess moisture—this prevents a watery salad. Transfer to a large mixing bowl and flake the tuna with a fork until it’s uniformly broken into bite-sized pieces.

The texture should be chunky, not mushy. I prefer this method over mashing because it preserves the integrity of the fish, giving each bite distinct flakes rather than a paste. The tuna is the base, so handle it with care to maintain its structure.

Step 3: Combine Wet and Dry Ingredients

In the bowl with the tuna, add the 1 cup plain Greek yogurt, 2 tbsp lemon juice, 1 tbsp Dijon mustard, 0.5 tsp kosher salt, and 0.5 tsp freshly ground black pepper. Stir with a spatula until the mixture is just combined—don’t overmix.

Fold in the diced celery, drained red onion, chopped dill, parsley, and capers. The Greek yogurt replaces mayo, offering a tangy creaminess with a fraction of the fat. Taste and adjust seasoning if needed, but remember the capers and Dijon add saltiness, so go easy on additional salt.

Step 4: Finish and Chill for Optimal Flavor

Drizzle the 1 tbsp extra-virgin olive oil over the salad and fold it in. This final touch adds richness and helps bind the ingredients. The olive oil should glisten slightly on the surface, signaling it’s evenly distributed.

Cover the bowl and refrigerate for at least 30 minutes to allow the flavors to meld. This chilling period is critical—it lets the herbs infuse the yogurt base and the onion’s sharpness to fully subside. Serve chilled on its own, in lettuce cups, or on whole-grain bread.

Make-Ahead Tips for This Dish

Prep Ahead Strategy

Chop all vegetables and herbs up to 1 day ahead and store in separate airtight containers. This keeps them crisp and fresh. I like using OXO Good Grips containers for their tight seals. Soak the red onion in cold water just before assembling to maintain its bite. 💡

Tuna Prep

Drain and flake the 3 cans canned tuna in water up to 8 hours ahead and store covered in the fridge. Press plastic wrap directly on the surface to prevent drying. This step ensures the tuna stays moist and ready for quick mixing.

Yogurt Base

Mix the 1 cup plain Greek yogurt with 2 tbsp lemon juice and 1 tbsp Dijon mustard up to 12 hours ahead. Store in a sealed container. The acidity will slightly thicken the yogurt, enhancing the final texture.

Final Assembly

Combine all ingredients except olive oil up to 4 hours ahead. Keep refrigerated. The flavors meld beautifully over time, but avoid adding olive oil too early as it can separate. Drizzle it in just before serving.

Storage Tips

Store the completed salad in a shallow container with plastic wrap pressed directly on the surface. This prevents oxidation and keeps it fresh for 3-4 days. Avoid freezing, as the yogurt will separate and become watery. ❄️

Serving Shortcut

Portion the salad into lettuce cups or on bread slices up to 2 hours ahead. Cover with a damp paper towel to keep the greens crisp. This makes for easy grab-and-go lunches straight from the fridge.

Frequently Asked Questions